English verb conjugation
CAN TWITCH

Regular verb: twitch - twitched - twitched

Affirmation

Simple form	V-ing form
I can twitch you can twitch he can twitch we can twitch you can twitch they can twitch	I can be twitching you can be twitching he can be twitching we can be twitching you can be twitching they can be twitching
Perfect	V-ing perfect
I can have twitched you can have twitched he can have twitched we can have twitched you can have twitched they can have twitched	I can have been twitching you can have been twitching he can have been twitching we can have been twitching you can have been twitching they can have been twitching

Negation

Simple form	V-ing form
I cannot twitch you cannot twitch he cannot twitch we cannot twitch you cannot twitch they cannot twitch	I cannot be twitching you cannot be twitching he cannot be twitching we cannot be twitching you cannot be twitching they cannot be twitching
Perfect	V-ing perfect
I cannot have twitched you cannot have twitched he cannot have twitched we cannot have twitched you cannot have twitched they cannot have twitched	I cannot have been twitching you cannot have been twitching he cannot have been twitching we cannot have been twitching you cannot have been twitching they cannot have been twitching

Interrogative form

Simple form	V-ing form
can I twitch? can you twitch? can he twitch? can we twitch? can you twitch? can they twitch?	can I be twitching? can you be twitching? can he be twitching? can we be twitching? can you be twitching? can they be twitching?
Perfect	V-ing perfect
can I have twitched? can you have twitched? can he have twitched? can we have twitched? can you have twitched? can they have twitched?	can I have been twitching? can you have been twitching? can he have been twitching? can we have been twitching? can you have been twitching? can they have been twitching?

Interro-negative form

Simple form	V-ing form
can I not twitch? can you not twitch? can he not twitch? can we not twitch? can you not twitch? can they not twitch?	can I not be twitching? can you not be twitching? can he not be twitching? can we not be twitching? can you not be twitching? can they not be twitching?
Perfect	V-ing perfect
can I not have twitched? can you not have twitched? can he not have twitched? can we not have twitched? can you not have twitched? can they not have twitched?	can I not have been twitching? can you not have been twitching? can he not have been twitching? can we not have been twitching? can you not have been twitching? can they not have been twitching?